<?

// store as "mime_mail.inc"

class mime_mail
{
   var $parts;
   var $to;
   var $from;
   var $headers;
   var $subject;
   var $body;

   /*
    *     void mime_mail()
    *     class constructor
    */

   function mime_mail() {
      $this->parts = array();
      $this->to =  "";
      $this->from =  "";
      $this->subject =  "";
      $this->body =  "";
      $this->headers =  "";
   }

   /*
    *     void add_attachment(string message, [string name], [string ctype])
    *     Add an attachment to the mail object
    */

   function add_attachment($message, $name =  "", $ctype = "application/octet-stream") {
      $this->parts[] = array (
            "ctype" => $ctype,
            "message" => $message,
            "encode" => $encode,
            "name" => $name
                           );
   }

   /*
    *      void build_message(array part=
    *      Build message parts of an multipart mail
    */

   function build_message($part) {
      $message = $part[ "message"];
      $message = chunk_split(base64_encode($message));
      $encoding =  "base64";
      return  "Content-Type: ".$part[ "ctype"].
         ($part[ "name"]? "; name = \"".$part[ "name"].
         "\"" :  "").

         "\nContent-Transfer-Encoding: $encoding\n\n$message\n";
   }

   /*
    *      void build_multipart()
    *      Build a multipart mail
    */

   function build_multipart() {
      $boundary =  "b".md5(uniqid(time()));
      $multipart =
         "Content-Type: multipart/mixed; boundary = $boundary\n\nThis is a MIME encoded message.\n\n--$boundary";

         for($i = sizeof($this->parts)-1; $i >= 0; $i--)
      {
         $multipart .=  "\n".$this->build_message($this->parts[$i]).
            "--$boundary";
      }
      return $multipart.=  "--\n";
   }

   /*
    *      string get_mail()
    *      returns the constructed mail
    */

   function get_mail($complete = true) {
      $mime =  "";
      if (!empty($this->from))
         $mime .=  "From: ".$this->from. "\n";
      if (!empty($this->headers))
         $mime .= $this->headers. "\n";

      if ($complete) {
         if (!empty($this->to)) {
            $mime .= "To: $this->to\n";
         }
         if (!empty($this->subject)) {
            $mime .= "Subject: $this->subject\n";
         }
      }

      if (!empty($this->body))
         $this->add_attachment($this->body,  "",  "text/plain");
      $mime .=  "MIME-Version: 1.0\n".$this->build_multipart();

      return $mime;
   }

   /*
    *      void send()
    *      Send the mail (last class-function to be called)
    */

   function send() {
      $mime = $this->get_mail(false);
      mail($this->to, $this->subject,  "", $mime);
   }
};  // end of class

?>
